1200gs 2004
Have been working on the bike over the winter, the main job was replacing the alternator as it was badly cracked. Have replaced with bosche using existing pulley (drilled out) , the bike has not been started for a couple of months.
All went well - ish, new alternator with existing pully was about 5mm out of line with bottom pulley but all went back in ok. Started up and ran but there was a high pitch scraping noise from the front of the engine, did not go away with time (10mins), thought the bearing in the new/old (ebay) generator was duff so took the belt off and found the noise was still there. Thought I may of dropped a washer or something behind the main pulley so took that off . Noise still there, it does sound a bit terminal but hard to pinpoint where it was coming from, could be the bottom shaft bearing or the main shaft not sure but does not sound good. Oil is all as it needs to be but it is an old bike (as you can see by the state of the front panel.
Look forward to any thoughts before putting on trailer and taking to dealer for last rights etc.
Video of noise.
https://youtu.be/qxtwEpXvEMo
Thanks
Martin
Have been working on the bike over the winter, the main job was replacing the alternator as it was badly cracked. Have replaced with bosche using existing pulley (drilled out) , the bike has not been started for a couple of months.
All went well - ish, new alternator with existing pully was about 5mm out of line with bottom pulley but all went back in ok. Started up and ran but there was a high pitch scraping noise from the front of the engine, did not go away with time (10mins), thought the bearing in the new/old (ebay) generator was duff so took the belt off and found the noise was still there. Thought I may of dropped a washer or something behind the main pulley so took that off . Noise still there, it does sound a bit terminal but hard to pinpoint where it was coming from, could be the bottom shaft bearing or the main shaft not sure but does not sound good. Oil is all as it needs to be but it is an old bike (as you can see by the state of the front panel.
Look forward to any thoughts before putting on trailer and taking to dealer for last rights etc.
Video of noise.
https://youtu.be/qxtwEpXvEMo
Thanks
Martin